Oiling device



0. G. HALVORSEN.

OILING DEVICE.

APPLICATION man JULY 30.1920.

1,403,684, Patented Jan. 17, 1922,

2 sHETs-sHEET 1.

0. G. HALVORSEN.

OILING DEVICE.

APPLICATION FILED JuLY 3o. 1920.

1,403,684, Patented Jan. 17, 1922.

2 SHEETS-SHEET 2.

ff @s UNITED `STATES PATENT OFFICE.

OLE G. HALVORSEN, OF CHICAGO, ILLINOIS, ASSIG-NOR TO WINSLOW BOILER & ENGI- NEERING COMPANY, OF CIIHAGO7 ILLINOIS, .A `C(3R-:PORA'IION OF ILLINOIS.

OILING DEVICE.

Application filed July 30,

To all e/)wmfz't may concern.'

rBe it known that I, @Le RIHAL'VORSEN, a citizen of the Kingdom of Norway, residing at Chicago, in thecounty of Cook, State of Illinois, having invented certain new and useful.Improvements in Oiling Devices, do hereby declare that the following is a full, clear, and exact description of the same.

My invention relates to oiling devices for axiallynioving shafts, whereby the supply of lubricating oil is controlled by the position of the shaft, and it is particularly designed to be yemployed in a fuel oil burner in which the axial movement-of the fan shaft is utilizedalso to open and close a valve by which the flow of the fuel .oil is regulated, so that the .iow of both oils is simultaneously controlled. Theinvention consists in the matters hereinafter disclosed and then pointed out in the vappended claims. y

In lthe accompanying drawings which represent a practical embodiment of the various features'of my invention in a fuel oil burner, Fig. 1 is a view partly in side elevation and partly inV central longitudinal section through the `interior of the burner, parts being broken away; p

Fig. 2 is a detail sectional view on the line '2 2 of Fig. 1;

Fig. 3 Vis an enlarged sectional view of certain parts Yof Fig.,1;

Figs. 4, andk 5 are views onthe'lines 1 4 and 5-5 respectively of Fig. 3;

Fig. 6 is a detail .perspective view showing the parts tofpreventany torque in the re` tracting spring and journal sleeve;

Fig. 7 is a detail'sectional view of the longitudinally sliding tube;

Fig. 8 is a detail perspective view of t-he oiling collar, partly broken away, and

Fig. 9 is a detail sectional viewshowing the parts of the sliding tube and oil collar in position to close the oil passages.

In the drawings, in which like `reference numerals indicate the same or vcorresponding parts in the several views, thel numeral 1 represents a burner casing of suitable form,

, in the present instance being .substantially circular in cross-sectionA and composed of three sections connected by bolts through the flanges 2, and having a suitable air inlet 3 and a mixing chamberformed by the outwardly flared portion 4, and a flame outlet 5 leading to a suitable fire pot or combustion chamber.

Specification of Letters Patent.

Patented J an. 17, 1922.

i920. serial No. 400,188.

' The air-intake end of the casing above the inlet 3 is formed into a chamber extending across the casing'and having its outerwall curved upwardly and inwardly at its central portion as at Y6 to a line slightly below the central axis of the casing and approximately in the vertical plane of the inner wall of the inlet, where it carries the shaft-block 7. The interior of the casing is Aprovided with longitudinal air vanes 8 arranged in horizontal Aand vertical pairs as Yshown in Fig. 4, and

which extendradially from the center to the :burner Vcasing and are interrupted at their central portions to provide clearance for the outer end of the box, this chamber being pro-fv vided with an oil passage orduct leading through the `hub and block to an oil-pipe 15, which is connected with a suitable source of fuel oil supply of either the well-known gravity or force-feed type. The inner Vend of the box 11 is provided with a stuling-box closed byra gland 16 to prevent the fuel oil leaking from chamber 13 back along 'the shaft.

The-shaft is connected ,to a motor 17 by a suitable coupling 18 which permits the shaft to .move axially as hereinafter described,

and'withiii the chamber 13 the Vshaft is reduced in diameter to provide a valve 19 which co-operates with a correspondingly shaped valve-seat 20 formed at the inner end of an oil-passage in a partition of the chamber .13, the passage in the partition being of greater diameter' or cross-sectional area than the reduced portion of the shaft to ensure thefree flow of an adequate supply of fuel oil to the Vburner-head when the valve is un seated. The outer end of the hub 14 is reduced andprovided with a central bore through which the reduced end of the shaftfreely passes, and also with suitable radial oil passages through which the oil flows from chamber-13 when the valve is unseated to oil pipes 21, each of which carries 'an oil supply header 22 having suitable oil passages and exits. The shaft carries ai revolving wheel 23 having beater-heads 24 which sweep over the headers and beat up and atomizethe fuel oil when the shaft is rotated rfhe shaft is enclosed between the blocks 7 and 12 by a housing composed of the front and rear sections 25 and 26, the former being carried by the block l2 and the latter by the block 7, andthe sections of the housing are spaced apart at their inner ends to correspond with the interruption of the air vanes `to provide space for the travel or movement Y of the interposed fan propeller 27 along the axial line of the casing. The propeller is pinned to the shaft and has a central hub 28 of the same diameter as the housing but somewhat less in length than the distance between the inner ends of the housing sections to permit the propeller to move longitudinally of thecasing, the hub being reduced at each end to make a telescopic fit `with the sections of the housing so that the latter are closed in all positions of the propeller.

The journal-box 10 is formed at the ends of a sliding tube A29 Whichis concentric with the shaft but of larger diameter at its central portion. This tube is carried at its outer end ina plug 30 which is in threaded engagement with the bore of the block 7 so that 1t may be adjusted therein, the head of the plug being provided with radial holes 3l to receive a locking-pin 32 whichis carried by screw-bolts on the casing. The periphery of the tube is reduced near its outer end to provide a shoulder 34 for the plug 30 to limit u its sliding axial movement in an outward direction,` and at its outer end the tube carries a keyed head `which is held thereon by a nut 36 and has rearwardly projecting arms 37 sliding freely in bores 38 in the plug to allow the tube to move axially but prevent it from turning in the plug. The tube is pro vided near its inner end with an enlarged an-A nular flange 39 that has a sliding fit within the open end of atubular collar 40 which is pinned as at 4l in the casing 26. The collar 40` is provided at its outer end with an inturned flange 42 that embraces the extended reduced portion of the tube beyond its flange so that an annular oil chamber 43 is provided around the tube within the collar between the flanges 39 and 42. The collar is provided with an outer annular oil groove 44 having passages 45 to the oil chamber 43, and the casing 2G hasan oil passage 46 leading into the groove 44 and connected by a supply pipe `47' to a lubricating oil cup 48. The tube 29 is provided with 011 passages 49 leading from the chamber 43 to horizontal passages 50 in the inner portion of the journal-box, wherehy oil is supplied to the chamber 51 formed by the central portion of the tube. The passages 45 are at the front side of the chamber' are provided with oil grooves 52 to effec-V tively lubricate the box and shaft.

The expanding spring 53 surrounds the tube 29 and reacts between the plug 30 and flange 39 `to move the tube inwardly, and the Y inner end of the tube transmits its axial movement in that direction to the shaft by means of an interposed torque eliminating bearing composed of a pair of bushing rings 54 and The ring 54 is of steel and the ring 55 is of bronze, and the latter bears against a steel facing disk 5G secured to the propeller hub 28 by pins 57. The rings 54 and 55 and the inner end of the tube 29 are provided with circular oil grooves 58, and the rings are also provided with` oil passages 29 to ensure complete lubrication of these parts. The rings transmit' the end thrust of the fan propeller to the tube 29 andl the counter end thrust of the tube under the stress of spring 53 lto the propeller and the shaft, but prevent any torque in the tube and its associated spring 53, so that the spring has only a pushing action." VThe axial movement of the shaft and tube under the action of the propeller is limited by the plug 30 against whieh'the shoulder 34 of the tube Y casing, overcomingthe resistance of the spring 53 and withdrawing the valve 19 from itsseat, so that the fuel 'oil freely passes from the chamber 13 to the atomizing devices by which it is brokenv up and mixed with the air in the mixing Vchamber' to form the combus tible mixture; the propeller also acts as a fan or blowerlto draw .the air for mixture with the atomized oil into the casing through groove 44 and the chambers 43 and 5l, which are full of oil after their initial ing and vl;

are replenished when these passages are opened by the retraction of the shaft during the combustion of the fuel mixture, 'which is ignited by any suitable device, such for example as a spark-plug (not shown). Illhen the motor stops and the propeller ceases to revolve, the spring 53 expands and protracts the shaft axially to seat the valve 19 on its seat 2O to stop the passage of the fuel oil to the burner, and at the same .time the tube 29 takes the position shown in 9 to cut off the supply of lubricating oil through the passages d5 and 49. By this means the supplies of fuel oil and lubricating oil are simultaneously opened and closed, and both are shutoff when the machine is idle so that there is no escape or leakage of either hind of oil.

The lubricating oil supply device may be of any suitable construction, and for practical purposes I use an ordinary cup lL-8 of the capillary type having a wich in its leg in contact with the oil and dripping the oil into the pipe 47. Any suitable means may be employed to atomize the fuel oil, and to rotate and retract the shaft.

I claim:

l. In a device of the class described, a rotatable and axially movable shaft, a nonerotating journal tube for the shaft axiallyY movable therewith, a stationary oiling eollar surrounding the tube and forming an oil chamber therewith, the collar having a port to the chamber and the tube having a portfrom the chamber to its interior, and means to open and close the ports when the tube moves axially with the shaft.

2. In a device of the class described, a rotatable and axially movable shaft, av non-rotating journal tube for the shaft axially movable therewith and having a circumferential flange, a stationary oiling collar surrounding the flange of the tube and having a flange forming an oil chamber therewith, the collar and tube respectively having offset inlet and outlet ports for the chamber ar ranged to be opened and closed respectively by the tube flange and collar flange when the tubes 4moves axially with the shaft.

3. In device of the class described, a rotatable and axially movable shaft, a non-rotating journal tube for the shaft axially movable therewith and having an interior oil reservoir, a circumferential flange on thel tube, a stationary oiling collar surrounding the flange of the tube and having a flange forming an oil chamber therewith nn annuoil groove in the collar, a casing sur- In s .LL

rounding the collangroove and having an oil passage thereto, the collar and tube respectively havinp offset inlet and outlet ports for the chamber arranged to be opened and closed respectively by thetube flange and collar flange when the tube moves axially with the shaft.

l. In a device of the class described, a rotatable and axially movable shaft, a non-rotating journal tube for the shaft axially movable therewith, torque eliminating rings between the tube and shaft, an oiling collar surrounding the tube and forming an oil chamber therewith, the collar having a port to the chamber and the tube having ports from the chamber to the rings, and means to open and close the ports when the tube moves axially with the shaft.

5. In a device of the class described, a rotatable and axially movable shaft, a nonrotating journal tube for the shaft axially movable therewith and having an interior reservoir, torque eliminating rings between the tube and shaft, an oiling collar sur rounding the tube and forming an oil chamber therewith, the collar having a port to the chamber and the tube having ports from the chamber to its reservoir and to the rings, and means to open and close the ports when the tube moves axially with the shaft.

6. In a device of the class described, a rotatable and axially movable shaft, a journal tube for the shaft provided with oil ports and having a circumferential flange, a plug surrounding the tube and having means to prevent its rotation, a. spring between the plug and flange to move the tube axially in oneY direction, means to move the tube axially against the force of the spring, and means to open and close the ports in the tube when it moves axially.

7. In a device of the class described, a rotatable and axially movable shaft, a journal tube for the shaft provided with oil ports and longitudinal oil passages and having a circumferential iiange, a plug surrounding the tube and havin means to prevent its rotation, a spring between the plug and flange to move the tube axially in one direction, means to move the tube axially against the force of the spring, a torque eliminating device between the shaft and tube adjacent the oil passages and means to open and close the ports when the tube moves axially with the shaft.

8. In a device of the class described, a casing, a hub mounted in the casing and having an oil-passage in the axial line of the casing, a rotatable and axially movable shaft having a valve for said oil-passage, a nonrotating journal tube for the shaft axially movable therewith, oil ports in the tube, and means to 'open and close the oil passages and move the valve when the shaft moves axially.

9. In a device of the class described, a casing having a plurality of oil supply pipes, a hub mounted in the casing and having an oil-passage in the axial line of the casing connected to one of the-oil pipes, a rotatable and axially movable shaft having a valve for said oil-passage, a non-rotating journal tube for the shaft axially movable therewith, oil ports in the tube connected with Journal tube for the shaft axially movable therewith, oil ports in the tube connected with the othei` oil supply pipe, means to open and close the oil ports when the tube moves axially with the shaft, and means to move lthe shaft axially to open and close the valve. 1,5

In testimony whereof I aHiX my signature 1n the presence of two Witnesses.

OLE G. HALVORSE'N. Witnesses:

HARRY S. I-IARNED, J. MCROBERTS. 

